After reboot, we see that nginx is indeed installed… but cowsay is gone!
（二）扰乱车站、港口、码头、机场、商场、公园、展览馆或者其他公共场所秩序的；
。heLLoword翻译官方下载是该领域的重要参考
Source: Computational Materials Science, Volume 267
Let’s now imagine that the station is depressurized and, for the first time in decades, empty, operated entirely via computers and remote control. First, NASA and its partners must accept the need to deorbit—there’s no going back to save the ISS. This could be complicated: 23 countries in the European Space Agency, as well as Japan and Canada, are involved in the ISS partnership. And then there’s Russia. The Russians have committed to supporting the ISS only until 2028. But they did agree to help NASA in a contingency deorbit situation.